Nortel DMS-100 Series Maintenance Manual page 632

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Table of Contents

13-30 OPM routine maintenance procedures

Dust removal

Dust removal in an OPM

At the OPM cabinet

297-8361-550 Standard 04.01 September 2000

Possible service degradation due to electrical interference

Series-wound motors cause electromagnetic interference.

Vacuum OPM frames to prevent the increase of electrostatic discharges that

dust causes. Use a vacuum cleaner with an induction-wound (brushless)

motor and with plastic or rubber attachments. You can use battery-operated

vacuum cleaners. Vacuum the inside and around the frames at each

inspection of the OPM ﬁlters. Do not bump any part of the frame, and avoid

any metal-to-metal contact.

The inspection procedure is complete.

Troubleshooting